20952558

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 32118642

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 41, 58, 66, 82, 87, 89, 99, 123, 174, 178, 198, 246, 261, 267, 319, 369, 451, 522, 534, 638, 738, 801, 902, 957, 979, 1189, 1353, 1602, 1914, 1958, 2378, 2581, 2706, 2871, 2937, 3567, 3649, 4059, 5162, 5742, 5874, 7134, 7298, 7743, 8118, 8811, 10701, 10947, 13079, 15486, 17622, 21402, 21894, 23229, 26158, 28391, 32841, 39237, 40139, 46458, 56782, 65682, 78474, 80278, 85173, 105821, 117711, 120417, 170346, 211642, 235422, 240834, 255519, 317463, 361251, 511038, 634926, 722502, 952389, 1164031, 1904778, 2328062, 3492093, 6984186, 10476279, 20952558]

約数ペア:

[(1, 20952558), (2, 10476279), (3, 6984186), (6, 3492093), (9, 2328062), (11, 1904778), (18, 1164031), (22, 952389), (29, 722502), (33, 634926), (41, 511038), (58, 361251), (66, 317463), (82, 255519), (87, 240834), (89, 235422), (99, 211642), (123, 170346), (174, 120417), (178, 117711), (198, 105821), (246, 85173), (261, 80278), (267, 78474), (319, 65682), (369, 56782), (451, 46458), (522, 40139), (534, 39237), (638, 32841), (738, 28391), (801, 26158), (902, 23229), (957, 21894), (979, 21402), (1189, 17622), (1353, 15486), (1602, 13079), (1914, 10947), (1958, 10701), (2378, 8811), (2581, 8118), (2706, 7743), (2871, 7298), (2937, 7134), (3567, 5874), (3649, 5742), (4059, 5162)]